Dynamic task-belief is an integral part of decision-making

Area of Science:

• Neuroscience
• Cognitive Science
• Decision-Making

Background:

• Natural decisions integrate task inference and task performance.
• Traditional research often studies these processes in isolation.
• The relationship between task-belief and perceptual decision-making is not fully understood.

Purpose of the Study:

• To investigate the neuronal links between flexible task-belief and perceptual decision-making in macaque monkeys.
• To compare biological systems with artificial networks in task-belief-perception interactions.
• To explore how perception influences belief updating.

Main Methods:

• Developed a novel paradigm to manipulate and measure task-belief in macaques.
• Recorded neuronal activity from cortical areas 7a and V1.
• Compared animal performance and neural data with artificial networks.

Main Results:

• Stronger task-belief correlated with better perception in animals, but not artificial networks.
• Neuronal activity showed task-belief modulated the processing of believed-relevant features.
• Perceptual noise fluctuations in V1 were linked to task-belief updating.

Conclusions:

• Task-belief and perceptual decision-making are inextricably linked in biological systems.
• Biological neural networks exhibit unique principles in integrating belief and perception.
• Findings offer new insights into neural mechanisms underlying behavior and potential disease implications.